<?
authorize();

if (!check_perms('admin_manage_wiki')) {
    error(403);
}

if (!isset($_GET['id']) || !is_number($_GET['id'])) {
    error(404);
}
$ID = (int)$_GET['id'];

if ($ID == CONFIG['INDEX_ARTICLE']) {
    error('You cannot delete the main wiki article.');
}

$DB->query("SELECT MinClassEdit FROM wiki_articles WHERE ID = '$ID'");
list($MinEditClass) = $DB->next_record();

if ($MinEditClass > $LoggedUser['EffectiveClass']) {
    error(403);
}

$DB->query("
	SELECT Title
	FROM wiki_articles
	WHERE ID = $ID");

if (!$DB->has_results()) {
    error(404);
}

list($Title) = $DB->next_record(MYSQLI_NUM, false);
//Log
Misc::write_log("Wiki article $ID ($Title) was deleted by " . $LoggedUser['Username']);
//Delete
$DB->query("DELETE FROM wiki_articles WHERE ID = $ID");
$DB->query("DELETE FROM wiki_aliases WHERE ArticleID = $ID");
$DB->query("DELETE FROM wiki_revisions WHERE ID = $ID");
Wiki::flush_aliases();
Wiki::flush_article($ID);

header("location: wiki.php");
